gistfile1.rb

# Rails example

recipe :ignore
ignore(/(^tmp|jpg|png|gif|css|\.DS_Store)$/)

recipe :rails

process do |files|
  Ruby.run_tests(files.take_and_map do |file|
    case file
    when %r{^app/views/mailer}
      "test/unit/mailer_test.rb"
    when %r{^test/examples/accounts_quota.yml$}
      "test/unit/account/quotum_test.rb"
    end
  end)
end

gistfile2.rb

# Pure Ruby lib example

recipe :ignore
ignore(/^(html|tmp)/)

recipe :ruby

class Ruby
  def self.is_test_file?(path)
    path if File.exist?(File.expand_path("../#{path}", __FILE__))
  end
end

process do |files|
  if files.any? { |file| file.start_with?('lib') }
    log "Updating documentation in the background"
    system "rake documentation:generate &> /dev/null &"
  end
end

process do |files|
  Ruby.run_tests(files.take_and_map do |file|
    case file
    when %r{^lib/(.+)\.rb$}
      path = $1.gsub('/', '_')
      [
        Ruby.is_test_file?("test/unit/#{path}_test.rb"),
        Ruby.is_test_file?("test/functional/#{path}_test.rb")
      ].compact
    end
  end)
end